User manual

Installation and Integration Imagestore User Manual
Page 198 Miranda Technologies Ltd
If the Time-of-Day option is selected an external timecode source will be
used. The source of this external timecode is determined by the timecode
source selection described in a following paragraph. In the event of this
timecode source failing the internal clock takes over. When the timecode
source restarts the internal clock becomes locked again. Ten seconds of valid,
consistent, timecode are required before the system will lock to the external
timecode source. Date information is always maintained internally.
If the Time and Date option is selected the same conditions as the previous
paragraph apply with the exception that the current date is also taken from
the timecode source. This setting requires that a Leitch CSD-5300 (or
compatible) timecode source be provided.
If the Time/Date/Offset option is selected the same conditions apply as in the
two previous paragraphs with the exception that the offset information
provided by the Leitch CSD-5300 (or compatible) timecode source will be
applied by Imagestore.
If the Counter option is selected the timecode source does not affect
Imagestore's internal clock and is used solely as a direct feed to the displayed
clocks. Typically the option is used with count up or count down timers.
Should the external timecode stop, the displayed clock will stop.
Timecode Source
Two options are provided for timecode source. Use the arrow keys W X to
move the brackets to enclose the required setting and press enter to apply that
setting.
If VITC is selected and applied then Imagestore will attempt to read Vertical
Interval Time Code from its analogue reference input. The reference signal
applied must contain valid VITC code.
If LTC is selected and applied then Imagestore will attempt to read Linear
Time Code on the appropriate pins (Pin 1 = LTC+ and Pin 14 = LTC-) of its
GPI port. An LTC ground connection is provided on Pin 2 where required.
Aspect Ratio
The Aspect Ratio setting provides 4x3 and 16x9 options. This setting is used
to correctly scale analogue clock faces and hands that will all typically be
drawn using square pixels. The setting allows the same clock image to be
used in either format. Digital clock components are unaffected by the setting.